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Thelma Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this Thelma Davis across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed), with identified parents Grilla & Emma — first a daughter (b.~1911), then head of a 7-person household.
Age 29
b. ~1911
Female
Daughter
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Davis |
| Given Name | Thelma C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Birmingham City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Auditor |
| Industry | Department Store Office |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 600 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Auditor |
| Township / Ward | Birmingham City |
| Est. Birth Year | ~1911 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thelma | Age | Birth yr |
|---|---|---|---|---|
| Thelma Davis | Daughter | — | 29 | ~1911 |
| Juanita Walker | Daughter | — | 13 | ~1927 |
| Menter Walker | Head | — | 51 | ~1889 |
| Thelma Davis | Other | — | 8 | ~1932 |
| Ross Davis | Other | — | 31 | ~1909 |
| John Johnson | Other | — | 77 | ~1863 |
| Sallie Walker | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Jefferson, Alabama
Daughter, age 4
Jefferson, Alabama · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Thelma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Daughter, age 16
Jefferson, Alabama · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Thelma |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Daughter, age 29
Jefferson-County, Alabama · implied b. ~1911 — 7 household members
| Surname | Davis |
| Given Name | Thelma C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Birmingham City |
| 1935 Residence (County) | Jefferson |
| Occupation | Auditor |
| Industry | Department Store Office |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 600 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Thelma Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Grilla Davis (~0.92 confidence) and mother Emma Davis (~0.92 confidence) and father Menter Walker (~0.92 confidence) and mother Sallie Walker (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Grilla Davis
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Emma Davis
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
Menter Walker
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Sallie Walker
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thelma Davis
Daughter · 1940 · age 29 · b. ~1911 · Alabama
★ You are viewing this record
Sibling
Juanita Walker
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Alabama
Open full size
1940 US Federal Census — Jefferson-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00092-00639)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margie I Sailors | 5 | Daughter | — | Alabama |
| 2 | Jesse J Gregg | 50 | Head | Collector | Alabama |
| 3 | Mary D Gregg | 41 | Wife | — | Alabama |
| 4 | Jessie J Jr Gregg | 17 | Son | Delivery Boy | Alabama |
| 5 | William E Dorr | 29 | Head | Brick Mason | Alabama |
| 6 | Nellie M Dorr | 27 | Wife | — | Alabama |
| 7 | Bettie F Dorr | 10 | Daughter | — | Alabama |
| 8 | Clyde F Dorr | 4 | Son | — | Alabama |
| 9 | — | None | — | — | — |
| 10 | Herman M Chambers | 34 | Head | Truck Driver | Alabama |
| 11 | Pearl C Chambers | 33 | Wife | — | Alabama |
| 12 | Herman M Jr Chambers | 13 | Son | — | Alabama |
| 13 | Julian M Chambers | 9 | Son | — | Alabama |
| 14 | Bobbie J Chambers | 6 | Son | — | Alabama |
| 15 | Frank L Bell | 36 | Head | Machinist | Alabama |
| 16 | Bessie Bell | 39 | Wife | — | Alabama |
| 17 | Elizabeth Bell | 14 | Daughter | — | Alabama |
| 18 | Maverine Bell | 12 | Daughter | — | Alabama |
| 19 | Frank L Jr Bell | 5 | Son | — | Alabama |
| 20 | Mary E Bell | 78 | Mother | — | Alabama |
| 21 | Ada Corey | 65 | Head | — | Alabama |
| 22 | Francis O Corey | 30 | Daughter | Telephone Operator | Alabama |
| 23 | — | None | — | — | — |
| 24 | James B Tidwell | 49 | Head | Odd Jobs | Alabama |
| 25 | Annie C Tidwell | 49 | Wife | — | Alabama |
| 26 | Jack O Tidwell | 11 | Son | — | Alabama |
| 27 | Ruthie Tidwell | 9 | Son | — | Alabama |
| 28 | Ralph W Tidwell | 18 | Son | — | Alabama |
| 29 | Ray L Ledbetter | 28 | Head | Structural Steel | Alabama |
| 30 | Claudine Ledbetter | 26 | Wife | — | Alabama |
| 31 | Gail E Ledbetter | 2 | Daughter | — | Alabama |
| 32 | Ray L Jr Ledbetter | 0 | Son | — | Alabama |
| 33 | Menter G Walker | 51 | Head | Farmer | Alabama |
| 34 | Sallie Walker | 51 | Wife | — | Tennessee |
| 35 | Juanita Walker | 13 | Daughter | — | Alabama |
| 36 | Ross B Davis | 31 | Son-in-law | Operating Press Machine | Alabama |
| 37 | Thelma C Davis THIS PERSON | 29 | Daughter | Auditor | Alabama |
| 38 | Thelma J Davis | 8 | Granddaughter | — | Alabama |
| 39 | John Johnson | 77 | Father-in-law | — | Tennessee |
| 40 | Clifford R Campbell | 42 | Head | Shipping Clerk | Alabama |
Pedigree Summary
Thelma + 1 sibling
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)